Time-controlled device for dampers, valves, and the like



Jan. 26 1926. 1,570,685

c. E. LARRABEE TIME CONTROLLEU DEVICE FOR DAMPERS, VALVES, AND THE LIKE Original Filed August '7, 1924 2 Sheets-Sheet 1 Jan. 26 1926. 1,570,685

c. E. LARRABEE TIME coNTRoLLD na'vxc Fon nAuPERs, vALvns, AND 'rm-z Lrxn origina Filed August v. i924 2 sheets-sheet s2 Patented Jan. 26, 1926.

UNITED STATES l, 1,570,685 PATENT OFFICE.

CLINTON E. LARRABEE, OF BINGIIAMTON, NEW YORK, ASSIGNOR TOv INTERNATIONAL TIME RECORDING COMPANY OF NEW YORK, 01E' ENDICOTT, NEW YORK, .A CORPORA- TION 0F NEW YORK- TIME-CONTROLLED DEVICE FOR DAMIEIRS, VALVES, AND k'.LIIE LIKE.

Applcationled August 7, 1924, Serial No, 730,595. Renewed December 8, 1925.

To.y allwhom 'it may concern.'

Be it knoWn'that I, CLINTON E'. LABRA- BEE, a citizen of the United States of America, residing at Binghamton, in the county of Broome and State of New York, have invented certain new and useful Improvements in Time-Controlled Devices for Dampers, Valves, and the like, of which the following is a full, clear, and exact description.

This invention yrelates to time controlling apparatusfordampers, valves, and the like. It is more particularly directed to the provision of a means for operating a valve or V damper to differential .extents at various times. The device may be arranged to suc cessively move a damper step-by-step, and if desired the dampercontrolling member may be arranged to partially open to a desired extent, then remain in such possition for a predetermined time, and afterwards be further displaced as desired. Previous time controlled devices have been provided for controlling dampers and the like, but these have been arranged to entirely open the damper at a given time, or entirely close it.

Further objects of the invention reside in the provision o f certain details of construction 'whereby -a controlling element may be easily displaced Without imposing undue strain upon the clock mechanism. f

Other objects reside in the provision of` a device of this nature which Will be simple and inexpensive to manufacture, and which will not get out of order when in use.

Referring to the drawings- Fig. 1 is a front view of the apparatus.

Fig. 2 is a side elevation partly in section.

Fig. 3 is an enlarged front vieu7 of the es- Y capement mechanism..

In more detail, in Fig. 2, 10 designates a time driven arbor which maybeconnected in any suitable. manner with the clock mechanism. IThis arbor, through gearing 11, is adapted to drive a time program Wheel 12, which is rotatably mounted upon the stud 13, suitably ixed in-fiXed framemembers of the device. The program disk or Wheel 12 is of the customary type used in program clocks, and adjacentits periphery is provided With a plurality of threaded apertures 141 adapted to receive screw-threaded plugs 5, These plugs 15 `are inserted at points Where shifting of the damper controlling member is desired. A convenient arrangement` of plugs is to dispose `them at 15 minute intervals upon the periphery of lthe program disk..

teeth 1S are cut away, as shown at 20, for a purpose Which vWill hereinafter Vbe described. The gear 19 'is suitably mounted for rotation, andhas fixed thereto a Geneva disk 21. This Geneva disk is so located that its notches arev adapted to cooperate with the plugs 15, which are carried by the program disk 12. Also .cooperating with the Geneva disk 21 is an escapement 22 ofany desired form. For the purpose of adjusting the escapement member 22 by hand, a knurled knob or handle'28 is provided, which may be manipulated to vibrate the escapement and permit the Geneva disk to' operate under the influence Vof weight v17 when the Geneva disk is. clear of the plugsl 15.

Operation.

'During such periods when plugs 15 are not in cooperation with `the notches ofthe Geneva device, the lower end 24 of the es" capement cooperateswith the Genevavnotches and prevents rotation of the Geneva and downward movement of the damper controlling member 16 under theA influence of Weight 17. As the program diskv 12 rotates in the direction of the arrow, one or another of the stops 15 encounters the escapement device 22 and displaces it from the position shown `in Fig. 1 toA that shown in Fig. 3- Concurrently Vwith this displacement the shank of the plug 15 enters the Geneva stop and thus prevents the damper controlling member from moving down Without control. The program disk continues its advance, permitting .the Geneva member'21 to turn titi and allowing the damper controllingI member to descend one step. After the stop passes the Geneva, the part 24C ot the escapement member 22 again locks the Geneva. H, however, another plug 15 is encountered, the damper controlling .member is permitted to move to an additional extent.

The parts marked 25 on the drawings merely constitute the Winding mechanism for the clock.

After the damper controlling member 16 has moved to its extreme position, the cutaway portion of the rack 20 comes into cooperation with the gear 18, and thereafter gear 18 is free to revolve Without having any effect upon the damper controlling` member.

To reset the parts, the escapement 22-24 is depressed by hand, and the damper controlling` member 16 is then elevated to eX- treme elevated position. After it is thus reset, the escapement is released to prevent the subsequent descent of the damper controlling member except under the control ot the clock mechanism. It Will be understood that resetting may be elected at any time When desired.

I claim:

l. A time controlled apparatus for dampers, valves and the like, comprising a controlling member, a pre-positioned program wheel, and means for controlling the former member from said Wheel to permit a dilier-V ential displacement oi said member, said means including a Geneva device controlled by the program Wheel, geared connection therefrom to said controlling member, and an escapement device controlled by said program Wheel for preventing movement of said controlling member at times when the Geneva device is out of cooperation with the program Wheel.

2. A time-controlled apparatus for dampers, valves and the like including in combination a controlling member, a time positioned program wheel, means for controlling said controlling member from said program Wheel, said means including a Geneva device and insertible means cooperating with said Geneva device and adapted to be variously inserted in said program Wheel to ettect the displacement of said controlling member at selected times.

3. A time controlled apparatus lor dampcrs, valves and the like comprising in combination With a damper controlling member, a time positioned program Wheel, an escapement mechanism controlled thereby, means controlled by said escapement mechanism for locking the damper controlling member at predetermined timed positions ot' the program wheel and unlocking the same at other positions thereofand means for maintaining the damper controlling member nnder the control of the program wheel during the movement of said member to thereby allow time for the escapement mechanism to move to a position in which relooking may be elieected.

4. A time controlled apparatus for dampers and the like, comprising in combination with a controlling member, a program Wheel, a combined escapement mechanism and drive controlling device 'for the controlling member, said devices having provisions for con- 'l trolling and effecting a concurrent and coordinated movement of the drive controlling member With respect to the movement of the program Wheel, and insertable means upon said program Wheel for releasing said escapement and drive controlling device at selected time periods depending upon the position of the insertable means and the time position of the program Wheel.

5. A time-controlled apparatus for dampers, valves and the like comprising a controlling member, a Geneva device geared thereto, a program Wheel having insertible means for controlling the movement of said Geneva device and therethrough controlling the movement of said controlling member.

6. A time-controlled apparatus for dampers, valves and the like comprising a controlling member, a Geneva device geared thereto, a program Wheel for controlling the movement of said controlling member, and means for effecting a disconnection between the Geneva device and the controlling member after the latter has moved to a determined position.

7. A time-controlled apparatus for dampers, valves and the like comprising al controlling member, a Geneva device geared thereto a program Wheel for controlling the movement of said controlling member, and means for retaining the Geneva device in position when the latter is free from control by the program Wheel.

8. A time-controlled apparatus for dampcrs, valves and the like comprising a controlling member, a Geneva device geared thereto, a program Wheel for controlling the movement of said controlling member, means for retaining the Geneva device in position when the same is free from control by the program Wheel, and means for releasing said last mentioned means for the purpose described.

9. A time-controlled apparatus for dampers, valves and the like including in com bination a controlling member, a time positioned program Wheel, means for controlling the time of movement and the extent of movement of said controlling member from said program Wheel, said means including an escapement controlled in its operation by said program wheel, said means also including insertible devices in said program Wheel for controlling the time of operation of said escapement,

liti

10. A time controlled apparatus for dampers, Valves and the like' comprising in combination With a damper controlling member, a time positioned program Wheel, an escapement mechanism controlled thereby, means controlled by said escapement mechanism for locking the damper controlling member at predetermined time positions of the program Wheel and unlocking the same at 10 other positions thereof, and means for positively timing the relooking action of the escapement with respect to the advancing movement of the damper controlling member to insure relooking of the same at the next position in which locking is to be eected.

In testimony whereof I hereto affix my signature.

CLINTON E. LARRABEE. 

